Study Selection
Eligibility criteria included original research studies, published in
English, with COVID-19 patients (target population) that reported the
effects of ACEIs/ARBs (intervention), in comparison with non ACEIs/ARBs
use (comparison), on COVID-19 related outcomes. No restrictions were
placed on the reported outcomes or study types. All records identified
from the search strategy were exported from the databases and imported
into Covidence® (31) whereby duplicate records were removed. Two
reviewers (NA and LA) independently undertook titles and abstract
screening for relevance, followed by selecting records for full-text
screening and data extraction. At each stage, discrepancies were
resolved through discussion until consensus was achieved. A third author
(AK) verified the eligibility of the included studies.